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Date:      Sun, 2 Jul 1995 22:14:14 -0400 (EDT)
From:      "Rashid Karimov." <rashid@haven.ios.com>
To:        karl@bagpuss.demon.co.uk (Karl Strickland)
Cc:        henrich@crh.cl.msu.edu, freebsd-hackers@freebsd.org
Subject:   Re: Random Lockups
Message-ID:  <199507030214.WAA00940@haven.ios.com>
In-Reply-To: <199507021953.UAA05828@bagpuss.demon.co.uk> from "Karl Strickland" at Jul 2, 95 08:53:36 pm

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		Hi there,

> 
> > 	Well, allegedly the lock-up could be caused by QUOTAs
> > 	code or "rlogin" command under cirtain circumstances
> > 	( it was reorted here a day ago) .
> > 
> > 	I'm expiriencing the stuff regularly on P90/128Mb/Bustec.
> > 
> > 	Never had the problem with previous SNAP code :(
> > 	
> > 	If any1 here thinks about switching to 205 to run  the
> > 	server - DO NOT DO IT ! The system is not stable :( Alas :(
> 
> This is unfair - realise that 205 does *not* lockup for everyone.  I have
> been running FreeBSD since before 1.0 and before that have used several
> commercial PC UNIX os's.  205 is the most stable OS I have ever had running
> on this box - I have not had a single crash or lockup with it.

	Well... it was explicitly stated here ( the same thread) by some1
	from FreeBSD team that 205 _was never intedted to be stable ;(
	Just a try between 1.5 ( the last most stable version) and 2.1

	One of the design goals for 2.1 is exceptional stability .

	I'm wondering how many ppl here run FreeBSD PCs as _servers. 
	Say 3500-3000 accounts in  /etc/passwd , 50-60 of them on-line
	(average) , everybody has his own WEB page , POP3 and stuff/
	Average 250-280 processes running in the same  time .
	5-6 user partitions with QUOTAs . How stable is _this combination ,
	if any ? IMHO , not very stable ...I run it on different P90 systems
	- not the same brand - so that's definitely not the problem with
	particular HW.

	As a workstation or  server with limited functionality - 
	YES , it IS stable .


> 
> The difficulty is that a particular lockup may only be apparent with your
> particular combination of hardware.  Of course this is a bitch for you,
> and makes the problems difficult to reproduce and fix for everyone else.
> But it also means that you cannot slag off the entire release, just because

	I'm not slagging it ... just expressing my concern. I AM using FreeBSD
	for quite a time in _very crucial _business servers - so I trust it.
	The same time when I c that stability gets worse with _new release
	comparing to  previous SNAP - it bothers me , as well as
	it should bother everybody here.

	The good point is that's hard to imagine _real server w/o any
	problems - Sun or PC under different (commercial) Unix , but
	when it aparently could be tracked to problems w/o OS - the
	tiny part of it - the driver code or subsystem's ( QUOTAs )
	one, it should raise concern.


	Rashid




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